Surface modification with a fluorinated N-heterocyclic carbene on Au: effect on contact resistance in organic field-effect transistors

Abstract

Providing strong carbon-metal (C-M) bonds, N-heterocyclic carbenes (NHCs) recently were introduced as surface modifiers for various applications. Here we report a fluorinated NHC (F-NHC) monolayer chemically bonded to Au with...

Fundamentals and applications of N-heterocyclic carbene functionalized gold surfaces and nanoparticles

“…Finally, Chi, Glorius, Wang, and Doltnis reported gold surfaces modified with NHCs for organic field-effect transistors (OFETs). 79,82 Transistors modified with 5 mmol IDipp NHCs showed greater stability, increased hole mobility, and reduced contact resistance at the gold-pentacene interface versus similarly processed transistors with 4-(trifluoro-methyl) benzenethiol. 79 Photoswitches are a critical component for applications as diverse as conducting polymers to OLEDs, 83 and they often take advantage of cis/trans isomerism in azobenzene.…”

Charge transfer in the Ag–polymer–fullerene system of organic solar cells (OSCs) observed by surface-enhanced Raman spectroscopy: donor/acceptor concentration-dependent

“…Relative crystallinity depends on internal morphology changes and has a major contribution to the CT efficiency in photovoltaic devices. 29,30 Therefore, to confirm the crystallinity variation, the structural properties of pure P3HT (powder), pure PCBM (powder), Ag/P3HT, Ag/PCBM, and Ag/P3HT/PCBM thin films on Si wafers were further characterized by X-ray diffraction (XRD, Fig. 2(b) and (c)).…”

类液晶作为高性能有机场效应晶体管的有源层

“…Interestingly, the carrier mobility of the liquid crystal-like films is even above that of solution processed single-crystals with the same semiconducting molecules (1.5 cm 2 V −1 s −1 ) [27]. In the solution process, defects induced by residual organic solvents often deteriorate the carrier transport owing to carrier scattering [42,43]. In addition, similar to that of dielectric surface modification, the molecular template further passivates surface defects of the SiO 2 [44].…”